US9308794B2 - Air spring - Google Patents
Air spring Download PDFInfo
- Publication number
- US9308794B2 US9308794B2 US14/357,864 US201214357864A US9308794B2 US 9308794 B2 US9308794 B2 US 9308794B2 US 201214357864 A US201214357864 A US 201214357864A US 9308794 B2 US9308794 B2 US 9308794B2
- Authority
- US
- United States
- Prior art keywords
- air spring
- piston
- piston part
- rolling
- component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active, expires
Links
- 238000005096 rolling process Methods 0.000 claims abstract description 65
- 229920001971 elastomer Polymers 0.000 claims abstract description 10
- 239000013536 elastomeric material Substances 0.000 claims description 5
- 239000000806 elastomer Substances 0.000 abstract 3
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 8
- 239000000725 suspension Substances 0.000 description 7
- 230000001419 dependent effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/32—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds
- B60G11/48—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds not including leaf springs
- B60G11/62—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds not including leaf springs having both rubber springs and fluid springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
- B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
- B60G17/052—Pneumatic spring characteristics
- B60G17/0521—Pneumatic spring characteristics the spring having a flexible wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
- F16F9/04—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall
- F16F9/0454—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall characterised by the assembling method or by the mounting arrangement, e.g. mounting of the membrane
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
- F16F9/04—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall
- F16F9/05—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall the flexible wall being of the rolling diaphragm type
- F16F9/057—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall the flexible wall being of the rolling diaphragm type characterised by the piston
Definitions
- the invention relates to an air spring for vehicles, having an air spring bellows made of elastomeric material clamped in an airtight manner between an air spring cover and an air spring rolling piston, which air spring bellows delimits with the air spring cover and the air spring rolling piston a working chamber filled with compressed air, rolls on the air spring rolling piston while forming a rolling fold and is fastened to the air spring cover while forming a second fold, and having an elastomeric element which is provided as an anti-harshness mount.
- Air springs which are mounted between running gear and vehicle body and have an air spring bellows which in turn is fastened between an air spring cover and a rolling piston are known in a large number of configurations. In operation, the air spring is subjected to an internal overpressure. The air spring bellows rolls on the outer contour of the concentric air spring piston/rolling piston under load and in the course of spring movements while forming a rolling fold. An air spring of this type is frequently used in road or rail vehicles in order to achieve a comfortable suspension.
- Harshness mounts are increasingly called for in order to improve the suspension comfort of the air spring in the vehicle. Harshness is understood to mean a superposed, rough and hard behavior of the suspension in the case of oscillations of relatively high frequency and relatively small amplitude, which in the case of air springs or air spring and damper units is dependent on the working pressure applied and on the mountings between the components and the vehicle body.
- An air spring having an anti-harshness mount is known, for example, from DE 102010017227 A1, which is incorporated by reference, the mount being provided as an elastomeric element between an upper cover part and a lower cover part.
- An aspect of the invention provides an air spring for vehicles which makes possible an optimized installation space for a self-contained air spring, especially in the upside-down position with anti-harshness mount.
- the effectiveness of the mount with regard to ride comfort is to be optimized.
- the elastomeric element is arranged between a first piston part and a second piston part, coaxial therewith, of the air spring rolling bellows, the rolling surface for the air spring bellows being provided on the first piston part and the air spring bellows being fastened by means of a clamping element, and the second piston part being mountable on a mounting surface of a vehicle body.
- the elastomeric element as the anti-harshness mount may be made of rubber and may be vulcanized between the two piston parts, whereby simple manufacture is achieved.
- the first piston part is formed in two parts with a first and a second component, the first component being provided to fasten the air spring bellows and the rolling surface being arranged on the second component. It is advantageous in this case that the rolling contour of the piston can be exchanged, so that the characteristic of the air spring can be changed in the context of ride tuning.
- the second component preferably has a radially inwardly oriented step which, for fastening to the first component, engages in a recess on an outer side of the first component, whereby the rolling contour of the piston can be exchanged in a simple manner.
- the elastomeric element is made of rubber and is vulcanized between two annular elements which are arranged between the second piston part and the first component of the first piston part.
- the second piston part can be formed in three parts, the on-off valve being arranged between a first component provided as the dividing wall and a second component, which first and second components are connected to one another in a sealed manner, and a third component connected to the second component being provided for fastening to the mounting surface of the vehicle body.
- the first and second components may preferably be connected to one another in a sealed manner by means of a threaded connection.
- FIG. 1 shows a first exemplary embodiment of an air spring according to the invention in an upside-down position
- FIG. 2 shows an air spring rolling piston of the air spring according to FIG. 1 ;
- FIG. 3 shows a comparison between a known air spring and the air spring according to the invention as shown in FIGS. 1 and 2 in an upside-down position;
- FIG. 4 shows an air spring rolling piston of a second exemplary embodiment of an air spring according to the invention.
- FIG. 5 shows an air spring rolling piston of a third exemplary embodiment of an air spring according to the invention.
- FIG. 1 shows a first exemplary embodiment of an air spring 1 in the installed state in a vehicle
- FIG. 2 shows an enlarged air spring rolling piston 2 of the air spring 1 represented in FIG. 1 .
- the air spring 1 has an air spring bellows 4 made of elastomeric material which is clamped in an airtight manner between an air spring cover 3 and the air spring rolling piston 2 and delimits, with the air spring cover 3 and the air spring rolling piston 2 , a working chamber 5 filled with compressed air.
- the air spring bellows 4 rolls on the air spring rolling piston 2 while forming a rolling fold 6 and is fastened to the air spring cover 2 while forming a second fold 7 .
- Harshness is understood to mean a superposed, rough and hard suspension behavior in the event of oscillations of relatively high frequency and relatively small amplitude, which in the case of air springs or air spring and damper units is dependent on the applied working pressure and on the mountings between the components and the vehicle body.
- the elastomeric element 8 is arranged between a first piston part 11 and a second piston part 12 , coaxial therewith, of the air spring rolling piston 2 .
- the elastomeric element 8 as the anti-harshness mount is made of rubber and is vulcanized between the two piston parts 11 , 12 , allowing simple manufacture.
- the rolling surface for the air spring bellows 4 is provided on the first piston part 11 and the air spring bellows 4 is fastened to the first piston part 11 by means of a clamping element 13 .
- the second piston part 12 can be mounted on a mounting surface of the vehicle body 9 .
- FIG. 3 shows a comparison between a known air spring in the left-hand half and the air spring 1 according to the invention in an upside-down position in the right-hand half.
- FIG. 4 An air spring rolling piston 14 of a second exemplary embodiment of an air spring according to the invention can be seen in FIG. 4 .
- a first piston part 15 of the air spring rolling piston 14 is formed in two parts, with a first and a second component 17 , 18 .
- the first component 17 is provided for fastening the air spring bellows 4 and the rolling surface is arranged on the second component 18 .
- the second component 18 has a radially inwardly oriented step 19 which engages in a recess 20 on an outer side of the first component 17 .
- the elastomeric element 21 provided as the anti-harshness mount is made of rubber and is vulcanized between two annular elements 22 , 23 , which are arranged between the second piston part 16 and the first component 17 of the first piston part 15 , into which they are press-fitted.
- both the anti-harshness mount and the rolling contour of the air spring rolling piston 14 can be exchanged in a simple manner, whereby the characteristic of the air spring can be changed in the context of ride tuning.
- the air spring may have at least one further working chamber 25 , as shown in FIG. 5 , which shows an air spring rolling piston 24 of a third exemplary embodiment with a first and a second piston part 27 , 28 .
- the further working chamber 25 is separated from the working chamber 5 by means of a dividing wall and an on-off valve 26 .
- the second piston part 28 is formed in three parts, the on-off valve 26 being arranged between a first component 29 provided as the dividing wall and a second component 30 , which components 29 , 30 are connected to one another in a sealed manner.
- a third component 31 which is in turn connected to the second component 30 , is provided for fastening to the mounting surface of the vehicle body 9 and allows a connecting cable 32 of the on-off valve 26 to exit in a simple manner.
- first and second components 29 , 30 are connected to one another in a sealed manner by means of a threaded connection, although this connection may also be implemented by means of other types of connection.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Vehicle Body Suspensions (AREA)
- Vibration Prevention Devices (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011086353 | 2011-11-15 | ||
DE102011086353 | 2011-11-15 | ||
DE102011086353.2 | 2011-11-15 | ||
PCT/EP2012/072094 WO2013072241A1 (de) | 2011-11-15 | 2012-11-08 | Luftfeder |
Publications (2)
Publication Number | Publication Date |
---|---|
US20140374972A1 US20140374972A1 (en) | 2014-12-25 |
US9308794B2 true US9308794B2 (en) | 2016-04-12 |
Family
ID=47178671
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/357,864 Active 2032-12-11 US9308794B2 (en) | 2011-11-15 | 2012-11-08 | Air spring |
Country Status (5)
Country | Link |
---|---|
US (1) | US9308794B2 (zh) |
EP (1) | EP2780607B1 (zh) |
CN (1) | CN104024683B (zh) |
DE (1) | DE102012220317B4 (zh) |
WO (1) | WO2013072241A1 (zh) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013113577B4 (de) * | 2013-12-05 | 2022-10-06 | Saf-Holland Gmbh | Abrollkolben |
CN104912987A (zh) * | 2015-06-29 | 2015-09-16 | 常州机电职业技术学院 | 空气弹簧 |
DE102016202642A1 (de) * | 2016-01-29 | 2017-08-03 | Continental Teves Ag & Co. Ohg | Luftfeder mit Faltenbalg |
DE102016210121B4 (de) | 2016-06-08 | 2022-02-03 | Ford Global Technologies, Llc | Luftfeder für Fahrwerke von Fahrzeugen |
DE102017113999B4 (de) * | 2017-06-23 | 2022-04-28 | Vibracoustic Se | Wellenlager |
DE102018216023B4 (de) | 2018-09-20 | 2023-10-05 | Continental Automotive Technologies GmbH | Luftfedereinheit mit Kurzkardanikfalte |
CN111795098B (zh) * | 2020-05-25 | 2021-11-02 | 中国第一汽车股份有限公司 | 一种空气弹簧总成 |
CN113357300A (zh) * | 2021-06-03 | 2021-09-07 | 东风汽车集团股份有限公司 | 一种空气弹簧及汽车 |
CN113431859A (zh) * | 2021-06-15 | 2021-09-24 | 上海保隆汽车科技(安徽)有限公司 | 空气弹簧及其装配装置、装配方法 |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4787606A (en) * | 1987-06-17 | 1988-11-29 | The Firestone Tire & Rubber Company | Beadless air spring |
US5509641A (en) * | 1993-08-19 | 1996-04-23 | Continental Aktiengesellschaft | Air spring which includes a vibration absorbing mass |
DE19508980C1 (de) | 1995-03-13 | 1996-06-27 | Daimler Benz Ag | Luftfederbein |
DE19908607A1 (de) | 1999-02-27 | 2000-09-07 | Daimler Chrysler Ag | Luftfederbein für Radaufhängungen von Kraftfahrzeugen |
EP1614928A1 (de) | 2004-07-09 | 2006-01-11 | Audi Ag | Luftfeder, insbesondere für ein Kraftfahrzeug |
WO2007104671A1 (en) * | 2006-03-10 | 2007-09-20 | Trelleborg Automotive Uk Ltd. | Air spring with improved piston |
DE102006052314A1 (de) | 2006-11-07 | 2008-05-08 | Continental Aktiengesellschaft | Luftfedereinrichtung |
DE102008026219A1 (de) | 2008-05-30 | 2009-12-03 | Continental Aktiengesellschaft | Luftfeder zum Einbau in ein Kraftfahrzeug |
DE102008050604A1 (de) | 2008-10-09 | 2010-04-15 | Carl Freudenberg Kg | Luftfederbalg |
DE102010017227A1 (de) | 2010-06-03 | 2011-12-08 | Continental Teves Ag & Co. Ohg | Luftfeder für Fahrzeuge |
US20150035213A1 (en) * | 2012-04-18 | 2015-02-05 | Contitech Luftfedersysteme Gmbh | Roll-off piston for an air spring rolling-lobe flexible member |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10009912C1 (de) | 2000-03-01 | 2001-09-06 | Continental Ag | Luftfeder mit zweitteiligem Gehäuse |
US7325794B2 (en) * | 2005-06-06 | 2008-02-05 | Bfs Diversified Products, Llc | Air spring assembly and method |
JP2009162276A (ja) * | 2007-12-28 | 2009-07-23 | Toyo Tire & Rubber Co Ltd | 空気ばね |
WO2010019862A1 (en) * | 2008-08-14 | 2010-02-18 | Firestone Diversified Products, Llc | Rubber articles subjected to repeated deformation and compositions for making the same |
-
2012
- 2012-11-08 EP EP12786950.1A patent/EP2780607B1/de active Active
- 2012-11-08 US US14/357,864 patent/US9308794B2/en active Active
- 2012-11-08 CN CN201280056080.1A patent/CN104024683B/zh active Active
- 2012-11-08 WO PCT/EP2012/072094 patent/WO2013072241A1/de active Application Filing
- 2012-11-08 DE DE102012220317.6A patent/DE102012220317B4/de active Active
Patent Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4787606A (en) * | 1987-06-17 | 1988-11-29 | The Firestone Tire & Rubber Company | Beadless air spring |
US5509641A (en) * | 1993-08-19 | 1996-04-23 | Continental Aktiengesellschaft | Air spring which includes a vibration absorbing mass |
DE19508980C1 (de) | 1995-03-13 | 1996-06-27 | Daimler Benz Ag | Luftfederbein |
US5667203A (en) | 1995-03-13 | 1997-09-16 | Mercedes-Benz Ag | Air-spring leg |
DE19908607A1 (de) | 1999-02-27 | 2000-09-07 | Daimler Chrysler Ag | Luftfederbein für Radaufhängungen von Kraftfahrzeugen |
US6116584A (en) | 1999-02-27 | 2000-09-12 | Daimlerchrysler Ag | Air spring strut for motor vehicle wheel suspensions |
EP1614928A1 (de) | 2004-07-09 | 2006-01-11 | Audi Ag | Luftfeder, insbesondere für ein Kraftfahrzeug |
DE102004033199A1 (de) | 2004-07-09 | 2006-02-02 | Audi Ag | Luftfeder, insbesondere für ein Kraftfahrzeug |
WO2007104671A1 (en) * | 2006-03-10 | 2007-09-20 | Trelleborg Automotive Uk Ltd. | Air spring with improved piston |
DE102006052314A1 (de) | 2006-11-07 | 2008-05-08 | Continental Aktiengesellschaft | Luftfedereinrichtung |
US8272627B2 (en) | 2006-11-07 | 2012-09-25 | Continental Aktiengesellschaft | Air spring device |
DE102008026219A1 (de) | 2008-05-30 | 2009-12-03 | Continental Aktiengesellschaft | Luftfeder zum Einbau in ein Kraftfahrzeug |
DE102008050604A1 (de) | 2008-10-09 | 2010-04-15 | Carl Freudenberg Kg | Luftfederbalg |
DE102010017227A1 (de) | 2010-06-03 | 2011-12-08 | Continental Teves Ag & Co. Ohg | Luftfeder für Fahrzeuge |
US20150035213A1 (en) * | 2012-04-18 | 2015-02-05 | Contitech Luftfedersysteme Gmbh | Roll-off piston for an air spring rolling-lobe flexible member |
Non-Patent Citations (2)
Title |
---|
International Preliminary Report on Patentability and translation of the Written Opinion of the International Searching Authority for PCT/EP2012/072094, isused May 20, 2014. |
International Search Report corresponding to application No. PCT/EP2012/072094, dated Feb. 21, 2013. |
Also Published As
Publication number | Publication date |
---|---|
EP2780607A1 (de) | 2014-09-24 |
DE102012220317B4 (de) | 2023-10-05 |
CN104024683B (zh) | 2017-03-08 |
DE102012220317A1 (de) | 2013-05-16 |
EP2780607B1 (de) | 2019-06-26 |
CN104024683A (zh) | 2014-09-03 |
US20140374972A1 (en) | 2014-12-25 |
WO2013072241A1 (de) | 2013-05-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9308794B2 (en) | Air spring | |
EP1681180B1 (en) | Strut mount | |
US8439336B2 (en) | Dual path hydraulic strut mounts and vehicular suspension systems including the same | |
US8979076B2 (en) | Air spring device | |
US7284644B2 (en) | Multiple load path air spring assembly | |
WO2013061809A1 (ja) | 車両用ダンパのマウント構造及びマウント組付方法 | |
US8678361B2 (en) | Rebound stopper of strut assembly for suspension in vehicle | |
US20130292888A1 (en) | Air damping mount | |
CN103079847B (zh) | 具有弹性活塞支承件的空气弹簧支柱 | |
US6616160B2 (en) | Strut mount | |
CN101550980A (zh) | 底盘空气弹簧 | |
US9353826B2 (en) | Damper bearing for supporting a chassis component on a motor vehicle body | |
CN207077966U (zh) | 用于车辆的行走机构的空气弹簧 | |
US20180194189A1 (en) | Spring-damper assembly | |
US11331972B2 (en) | Monolithic suspension module | |
US20080011565A1 (en) | Pneumatic spring with vibration damper | |
CN105034738B (zh) | 用于车辆的悬架支柱模块的套筒和悬架支柱模块以及相应配备的车辆 | |
US20190143778A1 (en) | Single-tube vibration damper and dome bearing for motor vehicles | |
KR20140062628A (ko) | 부시 구조 | |
CN213331454U (zh) | 电动空压机 | |
US11649877B2 (en) | Elastomer spring/damper | |
CN103847489A (zh) | 一种发动机液压悬置的限位结构 | |
WO2024053233A1 (ja) | 防振装置 | |
JP2009085300A (ja) | アッパーサポート | |
KR101131044B1 (ko) | 공기현가장치 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CONTINENTAL TEVES AG & CO. OHG, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KROEGER, DIRK;REEL/FRAME:033727/0423 Effective date: 20140908 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
MAFP | Maintenance fee payment |
Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY Year of fee payment: 4 |
|
MAFP | Maintenance fee payment |
Free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY Year of fee payment: 8 |